Mick, even if it's fake, the myth of the average Joe schooling the World Champion or a top star (especially when that dude is a shmuck) is just a part of the culture of sports.

Examples:
Spadafora sparring PBF
Numerous fighters sparring Tyson in the 80's
Gene Lebell choking out Steven Seagal
Chuck Zito KO-ing Jean Claude Van Damme


Also the "unknown" is very interesting to sports fanatics, How would Bruce Lee have done in MMA? What did Harry Greb's style look like? Was John L. Sullivan really a bad ass? The less you know about something the more questions you want to ask about them.